ABB Stotz S&J Thermal Release TA200DU-110

Manufacturer: ABB Stotz S&J
Designation: Thermal Release 110A Class 10
Type: TA200DU-110
Adjustable Current Range: 80..110 A
Max. Rated Operating Voltage Ue: 690 V
Mounting Type: Direct Mounting
Connection Type Main Circuit: Screw Connection
Number of Auxiliary Contacts as Normally Open: 1
Number of Auxiliary Contacts as Normally Closed: 1
Number of Auxiliary Contacts as Changeover: 1
Tripping Class: Class 10 A
Reset Function Input: No
Automatic Reset Function: Yes
Push Button Reset Function: Yes

The thermal overload relay TA200DU provides reliable protection for connected motors with currents up to 200 A, in accordance with IEC/EN 60947-1, IEC/EN 60947-4-1, and IEC/EN 60947-5-1. The TA200DU is directly mounted on contactors AF190-AF205 but can also be mounted separately on a mounting plate. Thermal overload relays are three-pole and trip via bimetallic elements. The motor current flows through the bimetallic elements, heating them both directly and indirectly. If an overload (overcurrent) occurs, the bimetallic elements deform due to the heat generated. This causes the relay to trip and the switching positions of the contacts to change (95-96/97-98). A pre-connected contactor can thus be switched off. The relays allow for manual or automatic reset, and they feature test and stop functions as well as a tripped indicator. An additional reset button allows operation without opening the control cabinet. The TA200DU has a tripping class of 10A, is temperature compensated, and is sensitive to phase failure.